NL24797C - - Google Patents
Info
- Publication number
- NL24797C NL24797C NL24797DA NL24797C NL 24797 C NL24797 C NL 24797C NL 24797D A NL24797D A NL 24797DA NL 24797 C NL24797 C NL 24797C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
- H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Electromagnets (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72541A US1783044A (en) | 1925-12-01 | 1925-12-01 | Reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL24797C true NL24797C (forum.php) |
Family
ID=22108258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL24797D NL24797C (forum.php) | 1925-12-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1783044A (forum.php) |
| DE (1) | DE515378C (forum.php) |
| GB (1) | GB260148A (forum.php) |
| NL (1) | NL24797C (forum.php) |
-
0
- NL NL24797D patent/NL24797C/xx active
-
1925
- 1925-12-01 US US72541A patent/US1783044A/en not_active Expired - Lifetime
-
1926
- 1926-02-16 GB GB4461/26A patent/GB260148A/en not_active Expired
- 1926-12-01 DE DEA49358D patent/DE515378C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1783044A (en) | 1930-11-25 |
| DE515378C (de) | 1930-12-31 |
| GB260148A (en) | 1926-10-28 |